body{margin:0;font-family:Arial}
.site-header{background:#111;color:#fff}
.container{max-width:1200px;margin:auto;padding:20px;display:flex;justify-content:space-between}
nav a{color:#fff;margin-left:15px;text-decoration:none}
main{padding:40px}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:20px}
.card{background:#fff;border:1px solid #ddd;text-align:center}
.card img{width:100%;height:180px;object-fit:cover}
.footer{text-align:center;padding:20px;background:#eee}